BBBB help - which gen?

I have a BBBB at home and I want to know how to determine which make it is without taking it apart - I understand there is a difference in the trigger mechanism and air tank size between the two makes, are there any external differences in the blaster or the packaging?

Gen 2 in a sense actually more 'war potential'. Due to the fact it has a smaller tank (get's more pressure quickly) and has a lever trigger (making it easier to pull). Gen 1 when you plug the pump, your trigger may actually break.